Some time ago, Blogger comment notification was changed to send notification of all comments published to a given blog.
Notification now includes comments moderated as spam - either by the blog administrators, or by the Blogger spam moderation process. This confuses some blog owners, who complain about getting notifications which include spam comments.
Some blog owners do not appreciate getting spam comments, in their notification email. Unfortunately, as opposed to the possibility of seeing comments appear to vanish - when comments, supposedly published, are wrongfully moderated as spam and never generate notification email - it is impossible to not include some spam comments in the notification email.
Since notification email is sent immediately after a comment is published, it's simply not possible to exclude comments, which could be moderated as spam any time after published, from notification.
If you require notification email which only includes legitimate comments, you should not use notification email. You would be much better off using a comment feed. Start by removing your email address, from the comment notification email list.
If your blog includes a comment feed option, you need only to subscribe, using the subscription medium of your choice. Look at the sidebar of this blog. Do you see "The Real Blogger Status - Comments"? That's a newsfeed gadget, using the comments feed, for this blog.
If you like, you can setup a similar gadget, on your blog. Alternately, using the comment newsfeed URL for your blog, you can setup a FeedBurner feed, and use FeedBurner Email Distribution to have the feed emailed to you.
A downside of the FeedBurner feature is that email is not sent in real time, it is sent once a day, and lists all feed entries from the previous 24 hours. But if you insist on only seeing non spam comments, you need to allow 24 hours for moderation after publishing. And, you (and any other blog administrators) still need to moderate promptly, to keep the spam level down.
An Important Update
If you did not use a Blogger / Google account when you Followed this blog, years ago, you are probably not Following now . During the past...